docs: update changelog for recent changes

[rkaraivanov]

No description provided.

[Copilot]

🟢 Approval recommended

The only noted issue is a minor changelog-scope nit and no blocking issues remain.

Pull request overview

Updates the unreleased changelog with recent component features, changes, and accessibility fixes.

Changes:

• Documents breadcrumb components and accessibility behavior.
• Records button-group keyboard and ARIA updates.
• Adds recent carousel, date-picker, and dropdown fixes.

File summaries

File	Summary
CHANGELOG.md	Adds release notes for recent features, changes, and fixes.

Review details

Suppressed comments (1)

CHANGELOG.md:11

• This description is broader than the implementation: _suppressTabbables() only iterates the default slot, so focusable elements assigned to the prefix or suffix slots are not removed from the tab sequence when the breadcrumb is disabled. Please narrow this to the default-slot content (or change the component behavior before documenting all slotted content).

  - The `igc-breadcrumb` element has the `listitem` role. Put the content of the item, usually an anchor, in the default slot. The `prefix` and `suffix` slots add content before and after that content. The `separator` slot replaces the icon for one item. The `current` attribute sets `aria-current="page"`. The `disabled` attribute sets `aria-disabled` and removes the slotted content from the tab sequence. Assistive technology does not read the separator. The `label` and `separator` CSS parts give access to the two containers. [#1881](https://github.com/IgniteUI/igniteui-webcomponents/pull/1881)

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.